Sterling 11J11R06779-002 1.5" WC Air Pressure Switch for Gas Unit Heaters

The Sterling 11J11R06779-002 is a factory-calibrated air pressure switch designed for gas-fired unit heaters operating at standard altitudes (0-4,999 feet). This precision switch monitors air pressure to ensure safe and proper operation of heating equipment by verifying adequate combustion air flow and proper venting.

Key Specifications:

• Factory Set Point: 1.50 inch water column (WC) ±0.08 inch WC tolerance
• Application: Standard altitude installations (0-4,999 feet above sea level)
• Switch Type: SPST snap-action with quick-connect terminals
• Configuration: VF-V (Vacuum/Falling - Vacuum)

Compatibility:

• Designed for Sterling and Beacon Morris gas unit heaters
• Compatible with Dayton heating equipment models GG105, GG120, RF090, TF175, TF200, TF250
• OEM replacement for Cleveland Controls NS2-1013-01 and part number 69586-4-1214

This pressure switch features a durable glass-filled polycarbonate housing with an integral sensing diaphragm. The factory calibration eliminates the need for field adjustment, ensuring accurate and reliable pressure monitoring right out of the box. The switch activates when proper pressure conditions are met, allowing the heating system to operate safely.